Bensport car with piston failure at Chateauroux due to worn locking rings on the gudgeon pin.
| Identifier | ExFiles\Box 86\2\ scan0003 | |
| Date | 3rd March 1933 | |
| Y236. To Sg. {Arthur F. Sidgreaves - MD} From Hs. {Lord Ernest Hives - Chair} c. to Wor. {Arthur Wormald - General Works Manager} c. to E. {Mr Elliott - Chief Engineer} c. to By. {R.W. Bailey - Chief Engineer} Hs. {Lord Ernest Hives - Chair} 2/WJ.3.3.33. Re. BENSPORT(Codename for 3 1/2-litre Bentley). When the Bensport(Codename for 3 1/2-litre Bentley) car arrived at Chateauroux(French test region) it was found that there was considerable leakage of gas past the pistons. Hancock removed the pistons and it was found that the rings locking the gudgeon pin had failed and had worn the pistons very badly. The pistons have been returned to Derby and the car remains at Chateauroux(French test region) and will not be able to be run until these have been replaced. The locking rings for the gudgeon pin on the Bensport(Codename for 3 1/2-litre Bentley) is identical to that which we have used on the 25HP. The failure of the locking rings is undoubtedly due to the increased engine speed. We do not consider this fault will be very difficult to overcome and we are expecting early next week to send out the necessary parts so that this car can be running again. Hs. {Lord Ernest Hives - Chair} | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).